6231b4d9fc
Adds per-app categories to untrusted app domains and their app data types. Per-app categories are in addition to the existing per-user categories. Apps targeting sdk version 28+ will now have the following characteristics: Domain: u:r:untrusted_app:s0:c[0-9]+,c[0-9]+,c[0-9],c[0-9] Data context: u:object_r:app_data_file:s0:c[0-9]+,c[0-9]+,c[0-9],c[0-9] Whereas apps targeting 27- will look like: Domain: u:r:untrusted_app_27:s0:c[0-9]+,c[0-9]+ Data context: u:object_r:app_data_file:s0:c[0-9]+,c[0-9]+ To ensure backwards compatibility with previous SDK versions, the levelFrom=all now enforces categories by dominance instead of equality. Apps with per-app and per-user categories will continue to have selinux permissions (but not necessarily unix permissions) to access app data with only per-user categories, but apps with only per-user categories will not be able to access the data of apps with both per-app and per-user categories. Bug: 63897054 Test: Boot sailfish, run apps, verify no new selinux denials. Test: cts-tradefed run cts -m CtsSelinuxTargetSdkCurrentTestCases Test: cts-tradefed run cts -m CtsSelinuxTargetSdk27TestCases Test: cts-tradefed run cts -m CtsSelinuxTargetSdk25TestCases Test: adb sideload an OTA and verify that files are correctly labeled. Change-Id: I64b013874fe87b55f47e817a1279e76ecf86b7c0
25 lines
1.1 KiB
Text
25 lines
1.1 KiB
Text
###
|
|
### Untrusted apps.
|
|
###
|
|
### This file defines the rules for untrusted apps.
|
|
### Apps are labeled based on mac_permissions.xml (maps signer and
|
|
### optionally package name to seinfo value) and seapp_contexts (maps UID
|
|
### and optionally seinfo value to domain for process and type for data
|
|
### directory). The untrusted_app domain is the default assignment in
|
|
### seapp_contexts for any app with UID between APP_AID (10000)
|
|
### and AID_ISOLATED_START (99000) if the app has no specific seinfo
|
|
### value as determined from mac_permissions.xml. In current AOSP, this
|
|
### domain is assigned to all non-system apps as well as to any system apps
|
|
### that are not signed by the platform key. To move
|
|
### a system app into a specific domain, add a signer entry for it to
|
|
### mac_permissions.xml and assign it one of the pre-existing seinfo values
|
|
### or define and use a new seinfo value in both mac_permissions.xml and
|
|
### seapp_contexts.
|
|
###
|
|
|
|
typeattribute untrusted_app coredomain;
|
|
|
|
app_domain(untrusted_app)
|
|
untrusted_app_domain(untrusted_app)
|
|
net_domain(untrusted_app)
|
|
bluetooth_domain(untrusted_app)
|